JOHNSON FR-02 Relay

( Brand: Johnson ), ( Manufacturer Part Number: FR-02 ), ( Model: JOHNSON CONTROLS FR-02 ), ( Part Type: Control )

Review JOHNSON Controls Relay

Johnson FR-02 Relay - A Dependable Switching Solution for Your Electronic Projects

The Johnson FR-02 Relay, a compact and versatile component, is a must-have for any electronics enthusiast or professional seeking a reliable switching solution. This 5V DC coil-operated relay offers a robust and efficient means to control electrical circuits, making it ideal for a wide range of applications, from home automation projects to industrial control systems.

The Johnson FR-02 Relay features a Form A contact configuration, which means that the normally open (NO) contacts close when the coil is energized, and the normally closed (NC) contacts open. It operates at a low voltage of 5V DC, making it compatible with various power sources, including batteries and low-voltage systems. The relay's coil resistance is 500 ohms, ensuring efficient power consumption.

This miniature relay offers a contact rating of 2A at 250V AC or 30V DC, providing a robust and reliable switching capability for medium-power loads. The contacts are gold-plated, ensuring a long service life and minimal contact resistance, which translates to faster switching times and reduced power loss.

The Johnson FR-02 Relay is housed in a plastic case with a dimensions of 18mm x 12mm x 6mm (L x W x H), making it compact enough to fit into tight spaces. Its mounting holes are spaced at 2.54mm (0.1 inches), allowing easy integration into breadboard-based prototypes or PCB designs.

In summary, the Johnson FR-02 Relay is a high-quality and versatile switching component, perfect for projects requiring efficient and reliable control of electrical circuits. Its compact size, gold-plated contacts, and compatibility with various power sources make it an excellent choice for a wide range of applications. Whether you're a hobbyist or a professional, the Johnson FR-02 Relay is an essential tool for your electronics toolkit.

The Johnson FR-02 Relay is a commonly used electromechanical switch that operates based on the electrical contacts bouncing multiple times after being opened or closed. Here are some pros and cons to consider when deciding whether to purchase this relay:

1. **Affordable**: The Johnson FR-02 relay is quite cost-effective, making it an appealing choice for budget-conscious users.

2. **Common and Widely Available**: This relay is widely used in various applications, which means it's easy to find and purchase, and there's a lot of information and resources available online.

3. **Durable**: The Johnson FR-02 relay is known for its durability and reliability, making it a good choice for applications that require long-term use.

4. **Versatile**: This relay can be used in a variety of circuits due to its wide operating voltage range (6 to 88 VDC) and current handling capacity (up to 25 A).

1. **Contact Bounce**: The main disadvantage of the Johnson FR-02 relay is the issue of contact bounce, which can cause problems in certain applications where precision is important.

2. **Noise**: The contact bounce can also generate noise in some circuits, which might interfere with sensitive electronic devices.

3. **Limited Switching Frequency**: Due to the mechanical nature of the relay, it has a limited switching frequency (up to 25 times per second), which might not be sufficient for high-speed applications.

In conclusion, the Johnson FR-02 relay is a cost-effective and durable option for many applications, particularly those that don't require high-speed switching or precision. However, if your application is sensitive to noise or requires a high switching frequency, you might want to consider other types of relays or solid-state switches.

Recommendation: If you're looking for a budget-friendly relay for general-purpose use, the Johnson FR-02 relay could be a good choice. However, it's essential to consider your specific application requirements to ensure the relay is suitable.

Details:

Shipped with USPS Ground Advantage. Johnson Controls Relay FR-02. Condition is Used.

part #: fr02 prices

• $42.00-$1999.00

specifications hvaapa:

• brand: Johnson
• mpn: Fr-02
• model: Johnson Controls Fr-02
• part type: Control

returns hvaapa:

• policy: No Returns

general hvaapa:

• HVAC Refrigeration > HVAC Refrigeration: Parts Accessories > HVAC Refrigeration: Controls Circuit Boards
• condition: Used

shipping hvaapa:

• type: Calculated
• service: USPS Ground Advantage
• carrier: USPS
• transit: 4-10 Days
• class: Standard
• cost: $8.19

offer hvaapa:

• options: Ship-to-home
• sold: 0
• availability: In Stock
• started: September 8, 2025
• quantity: 1

seller hvaapa:

• city: Mapleville, Rhode Island
• rating: 100.0%
• # reviews: 71

payments hvaapa:

• wallet: Apple-pay
• other
• credit card: Diners-club

Johnson FR-02 Is Similar To:

• 2ee04706224 Johnson Controls Field Installed Vertical Flow Economizer 680243543757 (36% similar) Condition: new other see details whats in the box: one vertical flow economizer and installation instructions. The item has a dent as noted in picture. The box is damaged. Combined shipping is available on most items when purchased together. If you would like another size or please place that order ...(November 15th, 2018)
• 02-376-335 Johnson Controls Solenoid Air Valve Way (51.3% similar) I can't ship via ups or on buyers account. The shipping price quoted is for areas in continental USA only 48 states. As seen on pictures. Unused surplus. Most items over 13 ounces will go USPS priority mail expedited shipping Johnson controls V24 solenoid air valve 3 way 440 480V 50 60HZ V24NEW. Box...(March 14th, 2018)
• 025-33280-000 York Johnson Controls Thermal Expansion Valve Nib (41.8% similar) Does not come with original box...(September 20th, 2018)
• 1328 Johnson Controls Oil Failure Cut Out Control Time Delay (47.7% similar) 45 sec time delay...(May 7th, 2018)
• 37-202-8 Johnson Controls Count Mounting Plate Brackets (45.8% similar) Part number codeine Johnson controls mounting plate brackets. Free shipping l-DNA middle room shelf...(October 6th, 2018)
• 960-2 Johnson Controls Baso Thermocouple (52.9% similar) Johnson controls basso Thermopylae pilot safety shutoff switch model used condition...(October 22nd, 2017)
• A-4000-1037 Johnson Controls 3 Pack (57.1% similar) 3 pack Johnson controls inline filter A-4000-1037THESE are clean lightly used filters with a lot of service left in them. Some have lost the label...(January 13th, 2018)
• A19aab-10c Johnson Controls Spst High Range Temperature Control (41.8% similar) Selling best price to create movement better make less on an item and move it than have sit there. Besides, Las Vegas is coming up. This brand new,never used. Start buying...(June 26th, 2018)
• A19aad-26 Johnson Controls Temperature Control (51.4% similar) Johnson controls A19AAD-26, A19AAD-26C control...(December 26th, 2018)
• A19aba-40c Johnson Controls Remote Bulb Temperature Control (48.3% similar) Johnson controls A19ABA-40 remote bulb temperature control f code number: A19ABA-40C mechanical 24 to 277VAC psst open low automatic reset 30 100 degree set point range 3/1 2 adjustable differential 6' capillary length with 8 x 4 sensing screwdriver slot adjuster well no. Order separately WEL14A-...(June 21st, 2018)